guasco



(No Model.)

A. GUASGO & A. GHUSIN.

FEED INDICATOR FOR BOILERS.

No. 482,171. Patented Sept. 6, 1892.

Fig. 2.

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UNITED STATES PATENT OFFICE.

ANDRE GUASOO AND ANGE CHUSIN, OF MARSEILLES, FRANCE.

FEED-INDICATOR FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 482,171, dated September 6, 1892.

Application filed October 8,1891. Serial 170,408,113. (N model) Patented in France July 7, 1890, No. 206,795 ;in Belgi m August 17, 1891, No. 95,722 3 in England August 21,1891,N0. 1 1,128; in Germany September 29,1891,No.15,429; inItaly $eptember 30,1891,N0.30,427:

39,823 and No. 68,465.

in Spain November 7, 1891, No. 12,506, and in Austria-Hungary November 27, 1891, No-

T0 at whom it may concern: 2525 being as small as desired, it follows that at Be it known that we, ANDRE GUASCO and the slightest movement of the valve the con ANGE OHUSIN, citizens of the Republic of tact will take place and will last until the said France, and residents of Marseilles, in said Revalve shall again rest on its seat. The dura- 5 public, have invented certain new and useful tion of the contact is assured by the spring K, 5 5 Improvements in Feed-Indicators, of which which permits ot the rodmoving freely. The the following is a full, clear, and exact demovement of the valve is also made apparent Scription. by perforating the envelope of the indicator This invention has been patented to us in and by placing therein a glass tube cl, fixed France July 7, 1890, No. 206,795; in Italy in two tight mountings g g. It is in this 60 September 30, 1891, No. 30,427; in Spain Noglass tube that the index 1) movcs,being visivember 7, 1891, No. 12,506; in Belgium Auble through the glass. In both cases the gust 17, 1891,No. 95,722; inAustria-I'Iungary lower part of the rod a bears a shoulder 0, November 27, 1891, No. 39,823 and No. 68,465; forming a valve to bear upon the seat 20,and

25 in Great Britain August 21, 1891, No. 14,128, destined to prevent the passage of the water 65 and in Germany September 29, 1891, No. of the boiler into the upper casing in case of 15,429. a breaking of the glass or of dismounting of The object of our invention is to provide the apparatus for any cause. an indicator whereby the correct operation To put the apparatus in place, it suffices to of the valve-check of pumps or boilers is asmount it in the axis of the valve-stem in the 70 sured. valve-box V, previously pierced for the recep- In the accompanying drawings we have tion of the movable rod.

shown in Figures 1 and 2 one type of fecd-indi- In the course of working the body of the cator with our improvements applied thereto. indicator forms an air-reservoir, so that the Referring to the drawings, our feed-indimovable parts are always visible in the tube- 75 cator is composed of a hollow metallic tube T, indicator, even though the feeding he done in which is a movable rod a, hearing at its by a highly-colored liquid. lower part a shoulder c, forming a valve and The form and the dimensions may be varied surmounted by a movable index 1). Above according to thcuse to whichthe device is put.

the index is a spring K, provided with two We claim as our invention 80 metallic round shields I I. Two end pieces 1. In combination, the tubing T, screwt if, fixed to an insulating-stopper M, bear threaded at its lower end for attachment to the circuit-wires r r. A glass tube (I, fixed its support, the insulating-cap M, closing the by two tight mountings g g, permits of seeing upper end of said tube, the terminals t i, carthe movement of the index 1). Every checkried by the said cap, the valve 0 and its cas- 85 Valve when working is moved on its seatwith in g, the movable stem (1-, operated thereby, an alternate movement invisible and inaudithe movable contact I, and the spring K, inble from the exterior. By means of the inditermediate of the contact, and the movable cator this movement is madeapparent by an stein a, substantially as described.

electric bell placed at a desired point, and In combination, the tubing T, having 90 Which can beheard by everybody. The workopenings in its side, the valve 0, with its casing of the bell is assured by the connection ing, the movable stem a, carrying indicator of the two end pieces' t, lixed on an insulatb, the inner glass tube (Z, the terminals '6 t, ing-stopper M, bearing the wires of the circuit the contact I, connected with the stem at, and

W", by the metal shield I, attached to the spring the means for supporting the terminals clos- 9 5 K,which bears freely on the boss 1 upon the index b of the movable rod a, which being also placed freely on the head of the valve efollows the movements of the latter. The distance ing the end of the tube and holding the parts in place, consisting of the insulated cap M, substantially as described.

3. In combination, the valve with its stem,

which separatestheshieldlfrom theend pieces the indicator 1), the contact I, the interposed IOO spring between the contact and the indicator, and an electric circuit arranged to be opened and closed by the movable contact I, substantially as described.

4. In combination, the tubing T, the valve 8, with its casing, the terminals t t, the insulatingcap M therefor, the contact I, the movable stem a, connected therewlth to move the same to the terminals, and the valve 0 on the lower end of the stem a, resting upon the stem 10 of the valve 6, substantially as described.

In witness whereof We have hereunto set our hands in presence of two witnesses.

A. GUASOO. A. OHUSIN. lVitnesses:

ELI RIcARD, O. DERY. 

